Simple but effective to start with

Head and shoulder raises

This exercise will help you start toning your abdominal muscles, but don't be discouraged if you can't feel the muscles working. It can take weeks to start recovering your strength and your progress depends on how fit you were before getting pregnant.

• Lie on your back with your knees bent and your hands behind your head. • Take a breath and, as you exhale, tighten your abdominal muscles, flatten the small of your back against the floor, and raise your head and shoulders off the floor. Slowly lower and repeat the entire sequence eight to ten times.